CN210039374U - Multi-section rainfall induced landslide test device - Google Patents
Multi-section rainfall induced landslide test device Download PDFInfo
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- CN210039374U CN210039374U CN201920454252.XU CN201920454252U CN210039374U CN 210039374 U CN210039374 U CN 210039374U CN 201920454252 U CN201920454252 U CN 201920454252U CN 210039374 U CN210039374 U CN 210039374U
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- panel
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- downhill
- side baffle
- uphill
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Abstract
A multi-section rainfall induced landslide test device comprises combined panels, wherein the combined panels at least comprise three panels, two adjacent panels are connected through a hinge, a plurality of panels form a slope surface which inclines downwards, and slope body fillers are placed on the slope surface; each panel is correspondingly provided with a jacking device as a support, and two sides of each panel are provided with side baffles; the combined type panel is provided with a dewatering device above, a soil retaining plate is arranged at the position close to the lower edge of the combined type panel, and a water outlet is formed in the bottom of the soil retaining plate. The device can simulate the precipitation induced landslide test under different bedrock gradients and precipitation intensity conditions.
Description
Technical Field
The utility model belongs to induce landslide test device field, in particular to multistage formula rainfall inducing landslide test device.
Background
Rainfall is an important factor in inducing landslide. The effective stress of soil and stones on the downward slope body soaked by rainwater is correspondingly reduced, the effective stress and the anti-sliding force on the potential sliding surface are reduced, and the strength of the soil body under soaking is also correspondingly reduced. In addition, the rainwater flowing along the slope can increase the downward sliding force of the slope body, and further can induce the generation of the landslide.
Some devices are available for relevant tests of various factors inducing landslide. For example, the multifunctional rainfall landslide indoor test device disclosed in the Chinese invention patent (application publication No. CN 103675238A) can perform rainfall induced deformation and landslide tests of different slope models, soil-water characteristic curve tests in the drying and humidifying process of unsaturated soil, and other tests. The general model groove device for the rainfall landslide test disclosed in the Chinese invention patent (application publication number: CN 202631519U) can provide an effective equipment foundation for the landslide physical model test research under rainfall conditions and in various earth types and various geological structures. The slope landslide test device disclosed in the Chinese invention patent (application publication No. CN 107102119A) can be used for carrying out an indoor similarity simulation test on large-scale slope engineering, so as to track, analyze and research the dynamic evolution process of slope instability.
However, none of the above-described test apparatuses is capable of performing a landslide test induced by rainfall on a bedrock surface of different inclination angles, particularly a multi-stage bedrock surface.
SUMMERY OF THE UTILITY MODEL
In view of the technical problem that the background art exists, the utility model provides a multistage formula rainfall inducing landslide test device can simulate the rainfall under different bedrock slopes and the precipitation intensity condition and induce the landslide test.
In order to solve the technical problem, the utility model discloses following technical scheme has been taken and has been realized:
a multi-section rainfall induced landslide test device comprises combined panels, wherein the combined panels at least comprise three panels, two adjacent panels are connected through a hinge, a plurality of panels form a slope surface which inclines downwards, and slope body fillers are placed on the slope surface; each panel is correspondingly provided with a jacking device as a support, and two sides of each panel are provided with side baffles; the combined type panel is provided with a dewatering device above, a soil retaining plate is arranged at the position close to the lower edge of the combined type panel, and a water outlet is formed in the bottom of the soil retaining plate.
In a preferred scheme, the combined panel comprises a downhill panel, a middle slope panel and an uphill panel, wherein the downhill panel and the middle slope panel are connected through a first hinge, and the middle slope panel and the uphill panel are connected through a second hinge; the two sides of the downhill panel are provided with downhill panel side baffles, the two sides of the middle slope panel are provided with middle slope panel side baffles, and the two sides of the uphill panel are provided with uphill panel side baffles.
In the preferred scheme, at the joint of the downhill panel and the intermediate slope panel, the side baffle of the downhill panel is intersected with the side baffle of the intermediate slope panel, and the side baffle of the intermediate slope panel is attached to the inner wall of the side baffle of the downhill panel; the middle slope panel and the upper slope panel are connected, the side baffle of the middle slope panel is intersected with the side baffle of the upper slope panel, and the side baffle of the upper slope panel is attached to the inner wall of the side baffle of the middle slope panel.
In a preferred scheme, the jacking device below the downhill panel comprises a downhill panel jack, and the downhill panel jack is fixed on a basic platform; the jacking device below the downhill panel comprises a jack for the middle slope panel, and the jack for the middle slope panel is fixed on the foundation platform through a first supporting platform; the jacking device below the uphill panel comprises an uphill panel jack, and the uphill panel jack is fixed on the foundation platform through a second support table.
In the preferred scheme, the precipitation device comprises a precipitation platform, a water pipe is arranged in the precipitation platform, and a plurality of spray heads are arranged on the water pipe.
In the preferred scheme, a water outlet at the bottom of the soil retaining plate is connected with a water outlet pipe, and a water outlet valve is arranged on the water outlet pipe.
This patent can reach following beneficial effect:
1. the rainfall device can simulate different rainfall intensities, and the inclination angle of the combined panel is adjusted by controlling the jacking device, so that the influence of different bedrock gradients on rainfall induced landslide can be tested;
2. the excessive number of the panels in the combined panel can increase the investment cost of the device, and if the number of the panels is too small, the simulation effect can be influenced; in the preferred scheme, the combined panel adopts three panels, namely a downhill panel, a middle slope panel and an uphill panel, to simulate the gradient of the bedrock, so that the cost investment is saved on the premise of meeting the test requirement;
3. the side baffle of the uphill panel, the side baffle of the middle-slope panel and the side baffle of the downhill panel are connected from top to bottom in a downwash lap joint mode, so that the resistance of a transition area of the side baffles when the soil body slides downwards can be reduced;
4. the combined type panel can be filled with various types of fillers including but not limited to various sandy soil, soil-rock mixtures, ores, garbage soil and the like, so that rainfall induced landslide tests with different components can be performed.
Drawings
The invention will be further explained with reference to the following figures and examples:
fig. 1 is a schematic view of the overall structure of the present invention.
In the figure: the device comprises a precipitation platform 1, a spray head 2, a soil retaining plate 3, a drain pipe 4, a water outlet valve 5, a downhill panel 6, a middle slope panel 7, an uphill panel 8, a downhill panel side baffle 9, a middle slope panel side baffle 10, an uphill panel side baffle 11, a downhill panel jack 12, a middle slope panel jack 13, an uphill panel jack 14, a first hinge 15, a second hinge 16, a first supporting platform 17, a second supporting platform 18 and slope body fillers 19.
Detailed Description
The preferable scheme is as shown in fig. 1, the multi-section rainfall induced landslide test device comprises combined panels, wherein the combined panels at least comprise three panels, two adjacent panels are connected through a hinge, a slope surface which inclines downwards is formed by the panels, and slope body fillers 19 are placed on the slope surface; each panel is correspondingly provided with a jacking device as a support, and two sides of each panel are provided with side baffles; the modular panel top is equipped with precipitation device, is close to modular panel lower limb department and is equipped with fender apron 3, keeps off the apron 3 bottom and has seted up the outlet.
Further, the combined panel comprises a downhill panel 6, a middle slope panel 7 and an uphill panel 8, the downhill panel 6 and the middle slope panel 7 are connected through a first hinge 15, and the middle slope panel 7 and the uphill panel 8 are connected through a second hinge 16; the two sides of the downhill panel 6 are provided with downhill panel side baffles 9, the two sides of the middle slope panel 7 are provided with middle slope panel side baffles 10, and the two sides of the uphill panel 8 are provided with uphill panel side baffles 11.
Furthermore, at the joint of the downhill panel 6 and the middle slope panel 7, the downhill panel side barrier 9 is intersected with the middle slope panel side barrier 10, and the middle slope panel side barrier 10 is attached to the inner wall of the downhill panel side barrier 9; the middle slope panel 7 and the upper slope panel 8 are connected, the middle slope panel side baffle plate 10 is intersected with the upper slope panel side baffle plate 11, and the inner wall of the upper slope panel side baffle plate 11 is attached to the inner wall of the middle slope panel side baffle plate 10;
the design can ensure that the side baffle 9 of the downhill panel, the side baffle 10 of the middle slope panel and the side baffle 11 of the uphill panel can move freely when the slope inclination angle is changed, and can also reduce the resistance of the transition area of the side baffle when the soil body slides downwards.
Further, the jacking device below the downhill panel 6 comprises a downhill panel jack 12, and the downhill panel jack 12 is fixed on the base platform; the jacking device below the downhill panel 6 comprises a middle slope panel jack 13, and the middle slope panel jack 13 is fixed on the foundation platform through a first supporting platform 17; the jacking device below the uphill panel 8 comprises an uphill panel jack 14, and the uphill panel jack 14 is fixed on the foundation platform through a second support table 18;
the inclined angles of the downhill panel jack 12, the middle slope panel jack 13 and the uphill panel jack 14 can be respectively adjusted by the downhill panel jack 6, the middle slope panel jack 7 and the uphill panel jack 8; the downhill panels 6, the intermediate panels 7 and the uphill panels 8 are used to simulate the bedrock surface under the slope.
Furthermore, the precipitation device comprises a precipitation platform 1, a water pipe is arranged in the precipitation platform 1, and a plurality of spray heads 2 are arranged on the water pipe; the spray heads 2 are uniformly distributed on the lower surface of the precipitation platform 1, and the water yield of the spray heads 2 can be adjusted according to rainfall simulation requirements.
Furthermore, a water outlet at the bottom of the soil retaining plate 3 is connected with a water outlet pipe 4, and a water outlet valve 5 is arranged on the water outlet pipe 4; the drain pipe 4 can drain water flowing down from the surface of the slope body in time.
The operation steps of the whole device are as follows:
during testing, the inclination angles of the downhill panel 6, the middle slope panel 7 and the uphill panel 8 are respectively adjusted by controlling the downhill panel jack 12, the middle slope panel jack 13 and the uphill panel jack 14, so that the inclination angle required by the test is achieved;
after the adjustment is finished, slope fillers 19 are filled on the downward slope panel 6, the middle slope panel 7 and the upward slope panel 8, and the components of the slope fillers are generally soil, sand and stone and other materials;
after filling, opening the spray head 2, and adjusting the water spraying flow according to the requirement so as to simulate rainfall and observe landslide possibly induced by the rainfall;
the slope filler 19 can be used for filling soil or gravels, and can also be used for filling other materials such as soil and gravel mixtures, ores, garbage soil and the like according to the actual side slope geological characteristics.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.
Claims (6)
1. The utility model provides a multistage formula rainfall inducing landslide test device which characterized in that: the combined type plate comprises at least three plates, two adjacent plates are connected through a hinge, a slope surface which inclines downwards is formed by the plates, and slope filler (19) is placed on the slope surface; each panel is correspondingly provided with a jacking device as a support, and two sides of each panel are provided with side baffles; the combined type panel is provided with a precipitation device above, a soil retaining plate (3) is arranged at the position close to the lower edge of the combined type panel, and a water outlet is formed in the bottom of the soil retaining plate (3).
2. The multi-section rainfall induced landslide test device of claim 1, wherein: the combined panel comprises a downhill panel (6), a middle slope panel (7) and an uphill panel (8), wherein the downhill panel (6) and the middle slope panel (7) are connected through a first hinge (15), and the middle slope panel (7) and the uphill panel (8) are connected through a second hinge (16); downhill panel side baffles (9) are arranged on two sides of the downhill panel (6), a middle slope panel side baffle (10) is arranged on two sides of the middle slope panel (7), and an uphill panel side baffle (11) is arranged on two sides of the uphill panel (8).
3. The multi-section rainfall induced landslide test device of claim 2, wherein: the connecting part of the downhill panel (6) and the middle slope panel (7), the downhill panel side baffle (9) is intersected with the middle slope panel side baffle (10), and the middle slope panel side baffle (10) is attached to the inner wall of the downhill panel side baffle (9); the middle slope panel (7) and the upper slope panel (8) are connected, the middle slope panel side baffle (10) is intersected with the upper slope panel side baffle (11), and the upper slope panel side baffle (11) is attached to the inner wall of the middle slope panel side baffle (10).
4. The multi-section rainfall induced landslide test device of claim 1 or 2, wherein: the jacking device below the downhill panel (6) comprises a downhill panel jack (12), and the downhill panel jack (12) is fixed on the base platform; the jacking device below the downhill panel (6) comprises a jack (13) for the middle slope panel, and the jack (13) for the middle slope panel is fixed on the foundation platform through a first supporting platform (17); the jacking device below the uphill panel (8) comprises an uphill panel jack (14), and the uphill panel jack (14) is fixed on the foundation platform through a second support table (18).
5. The multi-section rainfall induced landslide test device of claim 1, wherein: the precipitation device comprises a precipitation platform (1), a water pipe is arranged in the precipitation platform (1), and a plurality of spray heads (2) are arranged on the water pipe.
6. The multi-section rainfall induced landslide test device of claim 1, wherein: the water outlet at the bottom of the soil retaining plate (3) is connected with a water outlet pipe (4), and a water outlet valve (5) is arranged on the water outlet pipe (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454252.XU CN210039374U (en) | 2019-04-04 | 2019-04-04 | Multi-section rainfall induced landslide test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454252.XU CN210039374U (en) | 2019-04-04 | 2019-04-04 | Multi-section rainfall induced landslide test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210039374U true CN210039374U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920454252.XU Expired - Fee Related CN210039374U (en) | 2019-04-04 | 2019-04-04 | Multi-section rainfall induced landslide test device |
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| Country | Link |
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| CN (1) | CN210039374U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627279A (en) * | 2020-05-19 | 2020-09-04 | 中国安全生产科学研究院 | Test system for simulating whole process of landslide and debris flow disaster chain |
| CN111721913A (en) * | 2020-05-23 | 2020-09-29 | 中国科学院武汉岩土力学研究所 | Comprehensive model device with rainfall and underground water level tests |
-
2019
- 2019-04-04 CN CN201920454252.XU patent/CN210039374U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111627279A (en) * | 2020-05-19 | 2020-09-04 | 中国安全生产科学研究院 | Test system for simulating whole process of landslide and debris flow disaster chain |
| CN111721913A (en) * | 2020-05-23 | 2020-09-29 | 中国科学院武汉岩土力学研究所 | Comprehensive model device with rainfall and underground water level tests |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200207 Termination date: 20210404 |
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| CF01 | Termination of patent right due to non-payment of annual fee |